Shutter-worker



odl.)

A. PRANKE. SHUTTER WORKER.

Patent ed Oct. 14, 1890.

M123? b way; 4

- UNITED STATES.

PATENT" OFFICE.

AUGUST PRANKE, OF DETROI", MICHIGAN.

SH UTTER-WO RKER.

SPECIFICATION forming part of Letters Patent No. 438,426, dated October14, 1890.

Application filed May 10, 1890. $erial No. 351,364. (No model.)

To all whom it may concern.-

Be it known that I, AUGUST PRANKE, a citizen of the United States,residing at Detroit, county of Wayne, and State of Michigan, haveinvented a certain new and useful Improvement in Shutter-Workers; and Ideclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

My invention relates to certain new and useful improvements inshutter-workers; and it consists of the combinations and arrangements ofdevices and appliances hereinafter set forth and claimed, and moreparticularly illustrated in the accompanying drawings, in which Figure 1is a front elevation showing features of my invention with parts brokenaway or removed. Fig. 2 is a horizontal section showing portions of theinvention. Fig. 3 is a separate view of the hinge in front elevation.Fig. 4 is a section thereof on the line X X, Fig. 3. Fig. 5 isa separateview of one of the straps.

The object of my invention is to provide means for opening and closing ashutter from the inside of a room without the necessity of opening thewindow or removing a screen, should there be one used, the meansthemselves being simple, economical, and efficient.

I carry out my invention as follows:

A represents a window-casing; B, a shutter or blind to be operated.

H denotes one of the hinges uniting the shutter or blind to the casing,and provided with a toothed spindle or worm gear H, hava stationaryengagement therewith. H is an operating-rod extending through the casingto the interior of the building, and provided at its outer end with agear h, meshing with the gear H. By turning the operating-rod H it isevident that the blind or shutter can be opened or closed as desired andin a ready manner. This hinge I prefer to construct with the wormas anintegral part of one of the straps thereof. To this end, as shown inFigs. 1 and 3, H and H" denote the two straps of the hinge, the worm Hbeing formed with the strap H in a single piece. The strap H isconstructed with a housing H for the gears H and h, the housing being anintegral part of said strap. To unite the two straps, the gear H islocated in the housing, and a separate arm 11 is united therewith, as bya screw h. The other end of said arm is engaged upon one of the straps,as by a screw passed through a perforated shoulder 71, and said strap,the same screw being employed to secure the hinge upon the blind orwindow frame, as the case may be.

W'ith devices of the constructions herein described there is no rattlingof the blind or shutter- The gear H need be but a segment, as shown inFig. 2.

By thus uniting the gears with the hinges they are brought into compactform and can be applied readily to any blind or shutter.

WVhat I claim as my invention is- 1. The combination of a blind orshutter hinge consisting of two straps pivoted together, one of which isprovided with a gear formed integrally therewith, a bar pivoted to saidgear, and the gear-strap to steady and serve as a journal for said gear,in combination with a spindle and a gear connected thereto and meshingwith the first-named gear, by which the latter is caused to rotate,substantially as set forth.

2. In a blind or shutter worker, the hereindescribed hinge, consistingof two straps, one of which is provided with a gear extending verticallyfrom one end of the strap and the other strap provided with a housingopen at one end to receive and conceal said gear and having a pivotalengagement therewith, in combination with a spindle having fixed theretoa gear, which is also located and concealed within said housing and inengagement with the first-named gear, and a fastener securing saidfirst-named gear in said housing, substantially as described.

In testimony whereof I sign this specification in the presence of twowitnesses.

AUGUST PRANKE.

